英语：填空题。

Answer 1

1）th
2)把y改为ie，再加s
3）twenty-first, one hundred and thirty-second
4）first, second, third, fifth, eighth, ninth, twelfth
3.
1）five， first one
2) second, eight
3) twenties
4) Five
5) one, first
6) third
7) four
8) one, two
9) the twelfth

Answer 2

基数词变序数词口诀：
基数变序数，规律要掌握。
一二三要特记，其余词尾th。
五 十二 , ve 用 f 代。
八去 t, 九去 e，整十 y 变 ie。
要想改变几十几，只变各位就可以。
望能给你帮助。

Answer 3

二）
1）th
fourth tenth eleventh thirteenth
2）ty tie th
twenties thirties forties fifties
3）
twenty-first one hundred and thirty-second
4）
first second third fifth eighth ninth twelfth
3、
1) five first
2) second eight
3) twentieth
4) five
5) one first
6) third
7) four
8) one two
9) twelfth

Answer 4

th fourth tenth eleventh thirteenth